 Hi, welcome to OISOM Academy. Let's begin with all you need to know about Total Volatile Organic Compounds. Volatile organic compounds or VOC are a group of compounds containing carbon that have a high vapor pressure, that is easily convert into vapor or gases and have lower water solubility. There are thousands of VOCs in the environment, some of which may have short and long-term adverse health effects. Total VOCs are benzene, toluene, formaldehyde, ethylbenzene, xylene, acetaldehyde, ethylene glycol, methylene chloride, acetone, styrene, and so on. Their abundance makes it difficult to continuously monitor them simultaneously. Hence, a common term T-VOC or Total Volatile Organic Compound is used, representing the total concentration of VOCs present in the air. VOCs are released naturally in the atmosphere from forests, oceans, termites, wetlands and volcanoes. Anthropogenic sources include vehicular emissions, production storage, and burning of fossil fields such as gasoline, wood, coal, or natural gas. Initial process in the chemical, petrochemical, automotive, and pharmaceutical sectors, petroleum handling, alderfining, bio decomposition, painting and dry cleaning operations, materials such as paint, varnishes, sealants, adhesives, cleaners, air fresheners, cosmetics, deodorants, painting ends, and so on. Initial symptoms of breathing T-VOC include irritation to eyes, nose, and throat, headache, fatigue, dizziness, nausea, and vomiting, difficulty in breathing, loss of coordination, allergic skin reactions, visual disorders, and memory impairment. It can also aggravate existing respiratory diseases such as bronchitis and pneumonia. Long-term exposure to VOCs may lead to chronic respiratory diseases, kidney or liver damage, problems of nervous system, and can cause cancer. VOCs in the atmosphere react with another primary pollutant, NOx, in the presence of sunlight to form ozone, and fine particulate matter, PM2.5. The accumulation of ozone, PM2.5, and other air pollutants in the atmosphere results smog formation and visibility reduction. Now, T-VOC monitoring is an efficient way to detect exposure to toxic VOCs. And working principles for T-VOC monitoring in the ambient environment are photoionization detection that is PID, flame ionization detection, and semiconductor. At OISOM, we measure T-VOC on principle of photoionization detection, where T-VOC molecules get electrically charged when exposed to UV light. These ions produce an electric current proportional to the concentration of T-VOC. OISOM's odosense is the real-time odor emission tracking solution. It continuously detects, measures, and monitors the odorous gaseous contaminants including hydrogen sulfide, ammonia, sulphur dioxide, methylmer captain, and of course, T-VOC. Weather parameters like temperature, humidity, wind speed, and wind direction. Real-time monitoring of T-VOC levels helps in determining their source, as well as formulating an action plan to control VOC emissions. With this, I hope you now know all about total volatile organic compounds. For any questions or suggestions, please contact us. Thank you and happy learning.